Product Identification

Product Name

Butachlor

Synonyms

Amichlor
Lambast
Mach-Mach
N-(Butoxymethyl)-2-chloro-2',6'-diethyl-acetanilide
Sha 112301
Weedout

CAS

23184-66-9

Formula

C17H26ClNO2

Molecular Weight

311.85000000000002

EINECS

245-477-8

RTECS

AE1200000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen

Merck

12,1533

Beilstein/Gmelin

2873811

Physical and Chemical Properties

Appearance

Amber liquid.

Solubility in water

23 ppm (24 C)

Boiling Point

442

Vapor Pressure

5E-8 (25 C)

Density

1.0695 g/cm3 (20 C)

Partition Coefficient

4.5

Heat Of Vaporization

69.9 kJ/mol

Usage

Selective herbicide.

First Aid Measures

Ingestion

Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.

Inhalation

If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.

Skin

Remove contaminated clothing. Wash skin and hair thoroughly; do two soap and water washings. Leather absorbs pesticides. Hence, leather should not be worn in the presence of pesticides and all contaminated leather should be discarded.

Eyes

Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage

Do not store near heat or open flame.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation

Aspiration of insecticide containing petroleum distillate may result in pneumonitis.

Skin

Extensive contact results in dermal irritation.

Ingestion

Nausea, vomiting, and diarrhea may follow ingestion.

Exposure Controls/Personal Protection

Personal Protection

Rubber gloves, respirator, boots, long sleeved shirt or jacket, long pants.

Respirators

Use NIOSH/MSHA approved respirator appropriate for exposure of concern.

Exposure Effects

CNS excitation, seizures, tremor, ataxia, agitation, nervousness, and amnesia may occur. Kelthane, perthane, methoxychlor, and hexachlorobenzene have little CNS toxicity; in extreme overdose CNS depression may occur. Organochlorine pesticides such as DDT pass through the placenta, with an average level in the newborn blood reaching around a third of that in maternal blood. They can also be found in breast milk. Excessive absorption of kepone (chlordecone) has depressed sperm counts and sperm motility in exposed workers.

Fire Fighting Measures

Flash Point

221

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Accidental Release Measures

Small spills/leaks

Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.

Stability and Reactivity

Stability

Indefinitely Not sensitive to light or heat.

Incompatibilities

Strong oxidizing agents.